[I18N] Update translation terms from Transifex

addons/account/i18n/fa.po

addons/account/i18n/lt.po

addons/account/i18n/sv.po

addons/account_check_printing/i18n/ar.po

addons/account_voucher/i18n/sv.po

addons/analytic/i18n/sv.po

addons/auth_signup/i18n/sv.po

addons/base_address_city/i18n/ja.po

addons/calendar/i18n/pl.po

addons/calendar/i18n/sv.po

addons/calendar_sms/i18n/sv.po

addons/crm/i18n/sv.po

addons/digest/i18n/fa.po

addons/event/i18n/sv.po

addons/event_sale/i18n/sv.po

addons/fleet/i18n/et.po

addons/fleet/i18n/fa.po

addons/fleet/i18n/sv.po

addons/gamification/i18n/fa.po

addons/gamification/i18n/sv.po